https://bugzilla.wikimedia.org/show_bug.cgi?id=46633
Web browser: ---
Bug ID: 46633
Summary: Lua error messages not displaying on "preview page
with this template" in en.wikipedia
Product: MediaWiki extensions
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: normal
Priority: Unprioritized
Component: Scribunto
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Classification: Unclassified
Mobile Platform: ---
I've noticed on the English Wikipedia that when previewing Lua modules using
the "preview page with this template" option, if there is a script error, the
JavaScript error message doesn't show up when you click the link. To
demonstrate this, I have made the following:
https://en.wikipedia.org/wiki/Module:User:Mr._Stradivarius/previewbug
https://en.wikipedia.org/wiki/User:Mr._Stradivarius/Sandbox/Previewbug
If you click on the link in [[User:Mr. Stradivarius/Sandbox/Previewbug]] you
can see the error message, but if you edit [[Module:User:Mr.
Stradivarius/previewbug]] and then use "preview page with this template" with
"User:Mr. Stradivarius/Sandbox/Previewbug", the error message does not appear.
However, this bug does not occur on the test2 wiki. I've made equivalent
sandbox and module pages at:
https://test2.wikipedia.org/wiki/Module:User:Mr._Stradivarius/sandbox
https://test2.wikipedia.org/wiki/User:Mr._Stradivarius/sandbox
The error message displays fine with these pages. Because of this I'm not sure
where the bug is. But according to [1], en.wiki and test2 are running the same
version of Scribunto, so it's not a delay between patching one and patching the
other. Therefore I'm submitting a bug here in case it is a software-side
problem.
[1]
https://en.wikipedia.org/w/index.php?title=Wikipedia:Village_pump_%28technical%29&oldid=547427635#Lua_error_messages_not_displaying_on_.22preview_page_with_this_template.22
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